"We are cleaning up something that is - quite simply - a mess,"

VOA: standard.2009.05.21

Leicester Square is a mess at the moment

现在莱斯特广场一团糟。

关于莱斯特广场 - SpeakingMax英语口语达人

You can certainly hit Enter but as we saw-- seen that very quickly makes a mess of your code and such and so backslash N is new line.

你也可以敲回车键-,但是会让你的代码看起来乱七八糟,反斜杠n就是换行符。

哈佛公开课 - 计算机科学课程节选